<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/register" enctype="application/json" method="post">
    First namej: <input type="text" name="ipv4" /><br />
    Last namej: <input type="text" name="port" /><br />
    <input type="submit" value="Submit" />
</form>
</body>
</html>